Strand working machine



Aug. 9, 1932. D. c. ROBSON 1,871,391

STRAND WORKING MACHINE Filed Feb. 19. 1929 3 Sheets-Sheet l IIIliilljii'l'ilfii iii'i 1/ llmlll.

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a. c. ROBSQN 1,871,591

STRAND WORKING MACHINE Filed Feb, 19; 1929 s Sheets-Sheet 2 Aug. 9,1932.

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figif D. c. RO-BSON 1,871,391

STRAND WORKING MACHINE Filed Feb. 19. 1929 I5 Sheets-Sheet 3 PatentedAug. 9, 1932 DUER CYRUS BOIBSON; OF CHICAGO, ILLINOIS, ASSIGNOR TOWESTERN ELECTRIC COM- PANY, INCORPORATED, OF NEW YORK, N. Y., ACORPOLlEtJ-YI.IOIL\'\' OF YORK STRAND WORKING MACHINE- Application filedFebruary 19, 1929. SerialNo. 341,262.

This invention relates to strand working machines, .and especially tomachines involv ing, winding and: distributing apparatus therefor.

The primary object of the invention is to provide an efficient andcompact strand working machine having-a winding and distributingapparatus of simple and durable con struction.

In accordance with the general features of the invention, a wire drawingmachine is provided in which the integral drawing capstans aremounteddirectly on the motor operated from the samechain and sprocket drive,carries pivoted members for actuating a reciprocatory slide which has anad'- justable forked arm for engaging and distributing the wire onaspool rotated by the vertical takeup spindle.

It is believed that a complete understanding of the invention may be hadfrom the following description when taken in conjunction with theaccompanying drawings, in which Fig. 1 is a front elevational view,partly in section, of a wire drawing machine embodying the features ofthe invention;

Fig. 2 is a partial sectional View thereof taken on line 22 of Fig.1;Fig. 3 is an enlarged detailed view, partly in section, of the dieholder showing the inverted wire drawing dies; V

Fig. 4 is an enlarged sectional view of the cam mechanism taken on line4e4eof Fig. 2; Fig. 5 is a fragmentary sectional view ofa portion ofthecanimechanism taken on line 5-5 of Fig. i;

Fig. 6 is a detailed view of the adjustable cam roller taken'online 66of Fig. 4; 5a 7 is an enlarged fragmentary'view of the'structure foradjusting the forked dis tributing arm, and

Fig; 8- isan enlarged fragmentary sectional View taken on line 8-8-ofFig. 2, showingthe take-up spindle.

Referring now to thedrawings in which like reference numerals, designatesimilar parts throughout the various views, a frameworklO (Figs. 1and-2) is provided for housing thewire drawing apparatus which includesaplurality of integralcapstans 1212 of different diameters rigidlymounted on a shaft 13 of a motor 14. Supported below the capstans 1212in offset relation thereto area plurality of sheaves 1515 independentlyand rotatably mounted on a horizontaL ly disposed shaft 20 suitablysecured tothe framework 10; 'Mounted between the capstans and thesheaves is a die'holder 21 also v suitably securedto the framework.It'is-to be noted that a cover 16 is secured to the outervertical wallofthe largest capstan 12 to pre vent any possibility of the wire passingthroughithe wire drawingmachine becoming entangled.onithehexagonal nut17 which is usedto secure the captans12-12 to the motor shaft 13.

A supply ofwire to be reduced in diameter is carried: by a supply spool22 suitably mounted in'the lower left hand corner of the wiredrawingmachine (Fig. 1"). The wire is directed from the supply spool 22 througha bell-mouth'opening 23 inthe framework 10, over pulley 24-, through afirst reducing die 25,- andthenwound around the rear capstan 12 of.-smallest diameter. The wire is then passed-downward and under the rearsheave 15, up through the next reducing die, around the next capstan 12,and under the next sheave, .etc., until it is finally drawndown to thedesired diameter bythe last reducing die. From the final reducing diethe drawn wire passes aroundthecapstan .12 of the largest diameter andthence downward under a guide pulley 30 which is rotatably mounted inthe pivoted arm 31 maintained under'a constant counter-clockwise tensionby a torsion spring 32. From the pulley 30 the wire'passes between apair of'prongsof a forked distributing arm-33 and then to a take-upspool 34 lower end of the slide 62.

mounted on a vertical spindle 35 which is driven by mechanism to bedescribed.

As clearly illustrated by Fig. 3, the wire drawing dies are invertedandthe wire is drawn upward therethrough. The die holder 21 is providedwith a chamber 38 which is.

connected to a supply of wire drawing compound under pressure (notshown) and to a plurality of passageways 3939 for directing the wiredrawing compound into the mouths of the wire drawing dies.

The wire distributing apparatus comprises the forked distributing arm33, an enlarged end 40 of which is slidably mounted in a rectangularopening 41 of a member 42 reciprocable in a guideway 43 (Figs. 1 and 7)of the framework 10. The distributing arm 33 is normally urged towardthe top "of thereotangular opening 41 by a helical spring 44intermediate the lower surface of the e11 larged end 40 of the arm 33and the lower end of the rectangular opening 41and surrounding a rod 45threaded into the member 42. Centrally located through the enlarged end40 of the distributing arm is a vertical bore 50 through which the upperend of the. rod 45 extends. The rod is maintained in operative positionwith the enlarged end 40 by a washer 51 and a cotter pin 52. By turninga knurled knob 53 in the lower end of'th'e' rod 45 it will be readilyseen that the travel of the distributing arm can be closely adjustedwithin predetermined limits to allow for variations in the lengths oftake-up spools and thus expedite the accurate distribution of thefinished wire thereon. 7

The member 42 carrying the forked distributing arm 33 is reciprocated bya'lever 54 (Figs. 2 and 4) operatively associated therewith and pivotedat 55 to the framework 10. Pivoted at the other end ofthe lever 54 is abifurcated arm 56 which has an extremity extending through a slot- 60 ina. housing 61 and which is pivoted to a slide 62 Figs. 4 and 5) mountedin a guideway'63 within the housing. Another lever 58 having its endspivoted to the member 42 and the housing 61, respectively, is providedfor maintaining the member 42in an upright position. At both ends of theslide 62 are mountedrollers 64'65 for engaging a heart-shaped cam 66rigidly securedto a shaft67 suitably journaled in the housing 61. Thelower roller is adjustablyinounted on a block 68 6) which slidablyengages pins 69-69 provided with stop nuts 7070 and threaded into theIntegral with the block 68 is a plunger 71 extending into a bore 72 inthe end of the slide 62. and abutting a compression spring 73 positionedtherein. Upon turning the nuts-707O the lower roller 65 may be adjustedto allow for any wear in the camming edge of the heart-shaped cam 66 andthus assure positive contact beengaging a sprocket 83 secured to therear end of the motor shaft 13. Secured to the forward end of thehorizontal shaft 80 is a bevel rear 86 which meshes with a bevel gear 87(Fig. 8) keyed to the vertical spindle 35 suitably journaled in a casing89 secured to the framework 10. Also keyed to the spindle 35 is a disk94 having a frictional member 93 secured thereto for engaging a frlctionsurface 95 of a drum 96 rotatably mounted 011 the spindle 35. Frictionsurface 95 is maintained in engagement with the frictional member 93 ofthe disk 94 bya compression spring 97 surrounding the spindle 35 andinterposed between a portion of the drum 96 and a collar 98 slidablykeyed to the spindle. The compressive force of the spring 97 iscontrolle-dby a nut 99 threaded on the upper end of the spindle 35 andbearing against the upper surface of the collar 98. A bayonet slot 100in the periphery of the drum 96 is provided for engaging a pin 101 onthe takeup spool 34 to effectively lock the spool to the drum. By meansof the take-up mechanism described when the tension on the wire beingwound thereon exceeds a predetermined amount, the drum will slip on thespindle to thereby allow for the driving of the take-up spool at variousspeeds'to compensate for the varying diameters'of the spool as the wireis wound thereon.

. In operating the wire drawing'machine the motor 14 is connected to asource of electrical energy (not shown), whereby the integral capstans12-12 are directly driven to effect the drawing of the wire through thedies and its guidance through the prongs of the forked distributing armto the take-up spool 34 by means of the apparatus hereinbefore'described. The driving of the shaft 80 through sprockets 81 and 83 andchain 82 from the rear end of the motor 13 serves to rotate the take-upspoolthrough gears 86-87, spindle 35, disk 94, and drum 96. Since theworm wheel 78 meshes with the worm 79 integral with the rotating shaft80, the shaft 67 secured to the worm wheel and the heart-shaped cam 66is rotated. The engagementof the rollers 6465 with the camming edge ofthe cam 66 causes thereciprocation of the slide 62 and the arm 56,whereby the lever 54 is oscillated or rocked about its pivot 55. Theoscillation of the lever 54 moves the member 42.and the forkeddistributing arm 33 in a reciprocatory movement. The lever 58 having itsends pivoted to the member 42 and two compartments and containing an ainsva san housing fil', respectively, is provided to-loetter effectuatethe: reciprocation. of the: member;

42 in. an upright position.- Fromuthe foregoing 'deseription.itisapparent: that as the finished wire is'delivered tothe takesupspool, the. reciprocation of: dlstrlbutmgr arm. 38-

causes the wire. to. be; wound in uniform layers.

It will be'understood that the embodiment, of. the invention hereindescribed and illus- Q finedby the appendedclaims.

What; isclaimed is v 1. lna strand Working machine, azhousingi having aplurahty of angularly dlsposed sides and a septum extending betweencontignous and'oppositesides to divide the housing into two compartmentsand containing an.

apertureconnecting the compartments, a capstan rotatingon a horizontalaxis positioned inone of the said compartments, a sheave having. ahorizontal axis positioned in the same compartment and obliquelyoffsetiivith respect to the capstan, meansior worl- 'ng the strandintermediate the capstan and sheave, a: take-up means verticallypositioned'in the second compartment to receive and dispose eta strandcomingirom the capstan through the aperture in the-septum, and strandsupply means "positioned outside of and underneath the housing;

2. In a strand workingmachine, a housing having a-plurality ofzangularlydisposed sides and a septum extending between contiguous and oppositesides to divide the housing into ture connecting the compartments, acapstan rotating on a horizontal axis positioned in onset the saidcompartments, a sheave having a horizontal axis positioned in: the samecompartment and obliquely oitset'with respect to the capstan, means forworking the strand intermediate the capstan and sheave, a take-up meansvertically positioned in the second compartment to receive and disposeof a-strand coming from the capstan through the aperture in the septum,strand supply means positioned outside of and underneath thehousing,anda friction clutchhaving the take-up-means mounted thereonandcooperating'thereivith for controlling, the speed of the take-up means.

3, In a strand working'machine, a hous inghaving a plurality'otangularly disposed sides and a partition extending between opposite andcontiguous sides to divide the interior thereof into two compartments, acapstan rotating on a horizontalaxis positioned in one of-saidcompartments, a sheave having a horizontalaxis po'sitionedin the samecom partment along side of said capstan,.means intermediate the capstanand the sheave for working: the strand, aztake-up means verticallypositioned in the second comp artmentg. meanslior 'actuatinggtheicapstan and take-up means, and :meansloc'ated adj acentisaidpartie ti onconnected with the actuating :means and operable" in. response; theretofor: uniformly distributing the strand upon the take-up means.

4; In a strand'workingmachine, .azhousing having a plurality of!angular'ly' disposed sides and: partition extending; between op} positeand contiguouasidesthereOfito; divide the housing into two compartments,a. cap-- stanrotating: on ahorizonta-l axis positionedinione'of'saidZcompartments,.a' sheave having a horizontal axispositioned inithesame com partment: along? side of said partition. andobliquelyv oflset WllZhlIGSPGOlT: to the capstan, means intermediate thecapstan and the sheave for. working. the strand; a. take-up. meansvertically positioned in;- the second compartment, a friction: clutchhaving the take-up means mounted thereupon and cooperatingtherewith" forcontrolling; thesp eed of the take-up means as strand; is wound thereon,a reciprocable means for'unitormly distributing." the strand upon the,take+up means, and. a common means for actuating. the capstan; take-upmeans, and thezdistrihut mg: means.

5.. In a strand working: machine, arhou'sing. having apartition.extending loetweentop posit'eand contiguous sides to dividethe housingrinto twocompartments and containingian aperture connectingthe compartments,

acapstan' rotatingon a horizontal axispositioned in oneof saidcompartments above said" septum, a. sheave" havinga' horizontal axispositioned in the same compartment along sideof said partitionand'obliquely otl set" with respecttothe capstan, means inter=- mediatethe capstan'and'the sheave forworlring. the strand, a take-up meanspositionedin the second compartment, an-adjustahle tens-ioning meanshaving the take-up means mounted thereupon and cooperating therewith forcontrolling'the speed of the take-up means as strand iswoundthereon,means for actuating'thecapstan and'take-up means, a reciprocab-ledistributing means adjacent the aperture-in the partition for'receiving;the strand therethrough from the capstan and uniformly layingthe strandupon the takeup means, and a'cam connected with the actuating means andoperable in response thereto for reciprocating. the distributing. means;

' 6. Ina strand workingmachine, a housing having a partition extending.between opposite andacontiguous sides to divide the housingv into twocompartments and containing respect to the capstan, means intermediateond compartment, a tensioning means rigidly affixed to thevertical'shaft, a take-up means mounted upon the tensioning means andcooperating therewith for controlling the speed of the'take-up means asstrand is wound thereon, a reciprocable member receiving the strand fromthe capstan through the aperture in the partition and uniformlydistributing the strand upon the take-up means, means for actuating thetake-up means and thecapstan, and means operatively connectedwithactuating means for operating the reciprocable member.

7. In a strand Working machine, a housing having a partition extendingbetween opposite and contiguous sides to divide the interior thereofinto two compartments, a capstan rotating on a horizontal axispositioned in one of said compartments, a sheave having a horizontalaxis positioned in the same compartment and obliquely offset withrespect to the capstan, means intermediate the capstan and the sheavefor working the strand, a

take-up means mounted in the second compartment, a motor mounted at backof cap-- stan and connected directly thereto for the actuation thereof,a member for distributing the strand uniformly upon the take-up means, areciprocable support for the distributing member, adjustable means forvarying the reciprocable movement of the member, a cam located beneathsaid motor, a lever having one end engaging the reciprocable support andthe opposite end engaging the cam, and means operatively connected withsaid motor for rotating the cam to operate the support for causing auniform distribution of. the strand upon the take-up means and foractuating the take-up means.

8. In a strand Working machine, a housing having a partition extending.between opposite and contiguous sides to divide the interior thereofintotwo compartments, a capstan rotating on a horizontal axis positioned inone of said compartments, a sheave having a horizontal axis positionedin the same com- ;artment and obliquely offset with respect tothecapstan, means intermediate the capstan and the sheave for workingthe strand, a shaft vertically positioned in the second compartment, adisc keyed to the shaft, a friction material affixed to the disc, a drummounted on the shaft and engaging the friction material, a take-up meansrigidly secured to the drum, means secured to the shaft for varying theamount of engagement response thereto for uniformly distributing thestrand upon the take-up means. i

9. In a strand working machine, a housing having a partition extendingbetween opposite and contiguous sides to divide the interior thereofinto two compartments, a capstan rotating on a horizontal axispositioned in one of said compartments, a sheave having a horizontalaxis positioned in the same compartment and obliquely offset withrespect to the capstan, means intermediate the capstan and the sheavefor working the strand, a shaft vertically mounted in the secondcompartment, an adjustable friction clutch mounted upon the shaft, atake-up means secured to the friction clutch, a horizontal shaftconnected with thevertical shaft, a worm integral with the horizontalshaft, aworm wheel engaging the worm, a cam shaft having the worm wheelmounted thereupon, a pivoted lever having one end connected with thecam, a reciprocable support connected with the opposite'end of thelever, and a distributing member mounted in the support, means forvarying the amount of reciprocation of the support, means for actuatingthe capstan and the-horizontal shaft to rotate the take-up means and tooperate the distributing member for uniformly laying-the strand upon thetake-up means.

10. In a strand working machine, a housing having a partition extendingbetween opposite and contlguous sides to divide the interior thereofinto two compartments, a capstan rotating on a horizontal axispositioned in one of said compartments, a sheave having a horizontalaxis positioned in the same compartment and obliquely offset withrespect to the capstan, means intermediate the sheave and the capstanfor working the strand, a take-up means mounted in the secondcompartment substantially beneath the capstan, means mounted at the backof the capstan for the actuation of the capstan and take-up means, and areciprocable distributing means mounted at the back of the take-up meansdirectely beneath the actuating means and operatively connected with thelatter for uniformly laying strand upon the take-up means .as the strandpasses from the capstan.

11. In a strand working machine, a housing having a partition extendingbetween opposite and contiguous sides to divide the interior thereofinto two compartments, a capstan rotating on a horizontal axispositioned in one of said compartments, a sheave having ah-orizontalaxis positioned in the same compartment and obliquely ofiset withrespect to the capstan, means intermediate the capstan and the sheavefor Working the strand, a take-up'means vertically mounted in the secondcompartment, a friction clutch having the take-up means mountedthereupon and cooperating therewith for controlling the speed of thetake-up as the tension on the strand being Wound thereupon exceeds apredetermlned amount, means for actuatlng the capstan and the take-upmeans, a member associated with the take-up means for distrib-

